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Articles by A.A. Saleha
Total Records ( 3 ) for A.A. Saleha
  A.A. Saleha , Tin Tin Myaing , K.K. Ganapathy , I. Zulkifli , R. Raha and K. Arifah
  The purpose of this study was to determine the occurrence of antibiotic resistant Escherichia coli isolated from chicks and chickens. This study was carried out on three flocks of birds fed commercial feeds supplemented with antibiotics from three commercial farms. The chicks and chickens in the fourth flock were reared in a chicken house, given feed without antibiotic supplementation. Cloacal swabs were taken from 50 birds per flock at 1, 21 and 42-day old. A total of 507 E. coli were isolated from these birds. The resistance of E. coli isolated form 1-day-old chicks to chloramphenicol (10 μg), cephalothin (30 μg), cephalaxin (30 μg), enrofloxacin (5 μg) and neomycin (30 μg) was 0-45% compared to the other four antibiotics, nalidixic acid (30 μg), streptomycin (10 μg), tetracycline (30 μg) and trimethoprim (5 μg) which was 75-100%. The rates of resistance to antibiotics increased with the age of the chicks. Most of the isolates were resistant to at least 6 to 7 antibiotics. The highest rates of resistance to antibiotics were seen in 21 and 42 day old chickens. Escherichia coli, Klebsiella and Pseudomonas sp. isolated from feed samples were resistant to 4-9 antibiotics. The study suggests that the colonization antibiotic-resistant E. coli in the intestinal tracts of chicks and chickens were not necessarily due to the use of antibiotics in the feed as supplementation but may also be acquired from the immediate “contaminated” environment.
  Soe Soe Wai , A.A. Saleha , Z. Zunita , L. Hassan , A. Jalila and A.H. Shah
  Helicobacter pullorum, an enterohepatic helicobacter with the ability to colonize the intestine and liver of avian species, mice and humans, is increasingly recognized as a food borne zoonotic pathogen. The present study aimed to determine the genetic similarity among H. pullorum using pulsed field gel electrophoresis (PFGE) with SacII and SmaI restriction endonucleases (REs) digestion. The H. pullorum were isolated from broiler chickens in eight farms. Within-farm genetic profiling of isolates showed close relationship (>95%); however genetic diversity was observed between isolates from different farms. Digestion of genome with SacII yielded two clusters comprised 16 pulsotypes, 8-14 DNA bands with a molecular weight ranging from 40 to 400 kb whereas SmaI digested genome produced two clusters with 14 pulsotypes, 7 to 13 DNA bands with molecular weight ranging from 40 to 250 kb. The RE SacII showed a higher discriminatory power compared to SmaI. In conclusion, within-farm genetic similarity of isolates suggested the same source of clonal origin.
  A.A. Saleha and Z. Zunita
  A question was posed to the researchers as to whether methicillin resistant Staphylococcus aureus or MRSA, in animals is of public health concern. To answer the question, previous and recent studies were reviewed so as to gain insight into the occurrence of MRSA in animals, namely in food animals and pet animals, in food of animal origin, in personnel working with animals as well in pet owners. The MRSA scenario in Malaysia was also reviewed. The studies reviewed and those carried out in Malaysia showed the widespread occurrence of MRSA in animal species, which include pigs, horses, dogs, cats and chickens and in humans with several studies showed transmissions in both directions. Thus, MRSA is of great concern in both veterinary and human medicine as it can cause serious illnesses in both sets of populations.
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